Homogeneous nucleation in water in microfluidic channels

Keita Ando, Ai Qun Liu, Claus Dieter Ohl

研究成果: Article

45 引用 (Scopus)

抜粋

It has been an experimental challenge to test the rupture of liquids with homogeneous nucleation of vapor bubbles. Many prior studies suffered from the ubiquitous presence of impurities in liquids or at container surfaces that spontaneously nucleate and grow under tension. Here, we propose a microfluidic approach to eliminate such impurities and obtain homogeneous bubble nucleation. We stretch the liquid dynamically via the interaction between a laser-induced shock and an air-liquid interface in a microchannel. Reproducible observations of the nucleation of vapor bubbles are obtained, supporting our claim of homogeneous nucleation. From comparisons of the distribution of vapor cavities with Euler flow simulations, the nucleation threshold for water at room temperature is predicted to be -60MPa.

元の言語English
記事番号044501
ジャーナルPhysical review letters
109
発行部数4
DOI
出版物ステータスPublished - 2012 7 24

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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